Looking for rod for a/c heater box 67+

I rebuilt my a/c and heater box and found out I was missing a rod. If you have an a/c box I am looking for the vertical rod that attaches from the recirculating door (very bottom of the box, visible from the outside) to the pivot at the top of the heater section. It is a solid (non adjustable) rod, approximately 6" long. Thanks in advance. you can pm me here.